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id, title, category, status, verification_status, canonical_id, aliases, duplicate_of, source_trust_level, confidence_score, created_at, updated_at, review_reason, merge_history, tags, raw_sources, applied_in, github_commit
id title category status verification_status canonical_id aliases duplicate_of source_trust_level confidence_score created_at updated_at review_reason merge_history tags raw_sources applied_in github_commit
w3css-intro W3CSS Intro Programming_Language draft conceptual
W3.CSS Demo
Kitchen Sink
W3.CSS 소개
B 0.86 2026-07-04 2026-07-04
w3css
css-framework
w3schools
intro
https://www.w3schools.com/w3css/w3css_intro.asp

W3CSS Intro

🎯 한 줄 통찰 (One-line insight)

This "Kitchen Sink" intro page is deliberately a survey, not a tutorial — it flashes a tiny live sample of EVERY major W3.CSS feature (colors, containers, panels, cards, grid, flexbox, modals, tabs, animations, etc.) in one scroll, functioning as a visual table of contents that previews what each later chapter will teach in depth. [S1]

🧠 핵심 개념 (Core concepts)

  • Purpose — a single-page "kitchen sink" demo giving a bite-sized preview of nearly every W3.CSS component before diving into individual chapters. [S1]
  • Core class families previewedw3-container, w3-panel, w3-card, w3-table, w3-ul, w3-button/w3-btn, w3-tag/w3-badge, w3-grid, w3-flex, w3-row, w3-display-*, w3-modal, w3-dropdown, w3-bar (navigation), w3-animate-*. [S1]
  • w3-grid vs w3-flex distinction (previewed here, detailed later) — grid is two-dimensional (rows AND columns); flex is one-dimensional (rows OR columns). [S1]

📖 세부 내용 (Details)

  • Container example: <div class="w3-container w3-teal"><h1>This is a Header</h1></div>. [S1]
  • Panel example: <div class="w3-panel w3-red"><p>I am a panel</p></div>. [S1]
  • Card example: <div class="w3-card-4"><img src="img_snowtops.jpg" alt="Alps"><div class="w3-container w3-center"><p>French Alps</p></div></div>. [S1]
  • Grid example: <div class="w3-grid"><div>1</div><div>2</div><div>3</div><div>4</div></div>. [S1]
  • Flex example: <div class="w3-flex" style="gap:8px"><div>1</div><div>2</div><div>3</div></div>. [S1]

⚖️ 모순 및 업데이트 (Contradictions & updates)

소스에서 모순되는 정보는 발견되지 않음.

🛠️ 적용 사례 (Applied in summary)

현재 발견된 실제 적용 사례가 없습니다 — 이 페이지 자체가 W3.CSS 전체 기능의 축소판 시연이며, 각 컴포넌트는 이후 챕터에서 상세히 다뤄진다. [S1]

💻 코드 패턴 (Code patterns)

Grid vs flex, previewed side by side (HTML):

<div class="w3-grid"> <!-- two-dimensional: rows AND columns -->
  <div>1</div><div>2</div><div>3</div><div>4</div>
</div>
<div class="w3-flex" style="gap:8px"> <!-- one-dimensional: rows OR columns -->
  <div>1</div><div>2</div><div>3</div>
</div>

검증 상태 및 신뢰도

  • 상태: draft
  • 검증 단계: conceptual
  • 출처 신뢰도: B (W3Schools — widely used educational reference, not a primary standards body)
  • 신뢰 점수: 0.86
  • 중복 검사 결과: 신규 생성 (New discovery)

🔗 지식 그래프 (Knowledge Graph)

📚 출처 (Sources)

📝 변경 이력 (Change history)

  • 2026-07-04: Initial draft synthesized from the W3Schools "W3.CSS Demo (Kitchen Sink)" page (Astra wiki-curation, P-Reinforce v3.1 format).